研究者詳細 - 小坂　卓

講演・口頭発表等 - 小坂　卓

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Design Optimization of Hybrid Excitation Flux Switching Generator for Micro Hydroelectric System 国際会議

Yasushi Kato

2024 International Conference on Electrical Machines (ICEM) 2024年09月 IEEE (Institute of Electrical and Electronics Engineers)

開催年月日： 2024年09月

記述言語：英語会議種別：口頭発表（一般）

開催地：Politecnico di Torino, Torino, Italy 国名：イタリア共和国

This paper presents a design study of a hybrid excitation flux switching generator (HEFSG) for micro hydroelectric power generation system installed in water supply facilities as a kind of renewable energy systems. Interior permanent magnet synchronous generators installed in current micro hydroelectric power generation systems may lack the power generation range in the low-speed and high-torque range, depending on the location and conditions where the systems are installed, resulting in the loss of power generation opportunities. In this research and development, HEFSG as a kind of variable flux machines is applied with the aim of realizing a micro hydroelectric power generation system that can be used in various occasions and conditions. Application-oriented optimum design of HEFSG under given design constraint and specifications using finite element electromagnetic analysis is conducted. The design results show that the designed HEFSG can expand the high torque operating range in low-speed region that meets for the target requirement.

DOI： 10.1109/ICEM60801.2024.10700137

その他リンク： https://xplorestaging.ieee.org/document/10700137

GaN Based Modified Integrated On-Board Charger Configuration Using Minimum Additional Active and Passive Components 国際会議

Shohei Funatsu

2023 IEEE Energy Conversion Conference & EXPO (ECCE2023) 2023年10月 Institute of Electrical and Electronics Engineers

開催年月日： 2023年10月 - 2023年11月

記述言語：英語会議種別：ポスター発表

開催地：Nashvilee, TN, USA 国名：アメリカ合衆国

Design Study on Light-weight Quasi-coreless SPMSM using CFRP, Small Amount of SMC Core and Aluminum Winding 国際会議

Teruchika Ishihara

2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia) 2023年05月 Korean Institute of Power Electronics

開催年月日： 2023年05月

記述言語：英語会議種別：ポスター発表

開催地：Jeju, Korea 国名：大韓民国

DOI： 10.23919/ICPE2023-ECCEAsia54778.2023.10213851

その他リンク： https://ieeexplore.ieee.org/document/10213851/authors#authors

Study on Electric Motor Vibration Suppression by Active Dynamic Vibration Absorber 国際共著国際会議

Takashi Kosaka

2023 IEEE International Electric Machines & Drives Conference (IEMDC) 2023年05月 Institute of Electrical and Electronics Engineers

開催年月日： 2023年05月

記述言語：英語会議種別：口頭発表（一般）

開催地：San Francisco, CA, USA 国名：日本国

DOI： 10.1109/IEMDC55163.2023.10238866

その他リンク： https://ieeexplore.ieee.org/document/10238866

可変磁力モータ（ハイブリッド界磁フラックススイッチングモータ）

小坂　卓

令和５年電気学会全国大会 2023年03月一般社団法人電気学会

開催年月日： 2023年03月

記述言語：日本語会議種別：シンポジウム・ワークショップパネル（指名）

開催地：名古屋大学国名：日本国

Design Study on Hybrid Excitation Generator for Micro-hydroelectric System 国際会議

Kazuto　Maruyama

27th International Conference on Electrical Machines and Systems (ICEMS2024) 2024年11月 The Institute of Electrical Engineering of Japan

開催年月日： 2024年11月

記述言語：英語会議種別：ポスター発表

開催地：Fukuoka Institute of Technology, Fukuoka, Japan 国名：日本国

This paper presents design study on a hybrid excitation machine as a generator for a micro-hydroelectric system. A hybrid excitation generator is a kind of variable flux machines and has two mmf sources such as a permanent magnet and the field excitation coil that enables to adjust a total amount of airgap field flux produced by two mmf sources. With the variable field flux capability, a hybrid excitation generator promises to expand high torque oper-ating range at low speed region while keeping operating power range at middle and high-speed region as required in the target application under given maximum voltage and current restrictions. Application-oriented design of hybrid excitation generator under given design constraints and specifications using finite element electromagnetic analysis is conducted. As a result, it is confirmed that the designed hybrid excitation generator meets the requirement for a target micro-hydroelectric system.

Design Study on High Power Density Quasi-Coreless PMSM for Vehicle Traction Drive Rotating at 50,000r/min as the Maximum Speed 国際会議

Teruchika Ishihara

27th International Conference on Electrical Machines and Systems (ICEMS2024) 2024年11月 The Institute of Electrical Engineering of Japan

開催年月日： 2024年11月

記述言語：英語会議種別：口頭発表（一般）

開催地：Fukuoka Institute of Technology, Fukuoka, Japan 国名：日本国

This paper presents a design study on high-power density quasi-coreless permanent magnet synchronous motor for vehicle traction drives rotating at 50,000r/min as the maximum speed. Stator body is composed of carbon fiber rein-forced plastic, a small amount of soft magnetic composite core and aluminum windings. Rotor body consists of car-bon fiber reinforced plastic frame and polar anisotropic magnet. FEA-base feasibility study on the quasi-coreless motor with high power density and reduced losses are investigated, targeting the maximum speed of 50,000 r/min, the maximum power of 150 kW and the power density more than 10 kW/kg.

Modelling for PWM Carrier Loss Evaluation in Claw-pole Machine using MATLAB/Simulink 国際会議

Yusuke Okunishi

27th International Conference on Electrical Machines and Systems (ICEMS2024) 2024年11月 The Institute of Electrical Engineering of Japan

開催年月日： 2024年11月

記述言語：英語会議種別：口頭発表（一般）

開催地：Fukuoka Institute of Technology, Fukuoka, Japan 国名：日本国

This paper proposes an evaluation model for PWM carrier loss in claw-pole machines employed for ISG applications under dual three-phase drive. The PWM carrier loss is evaluated based on PWM carrier voltage waveform and high-frequency impedance. The proposed model is composed of the equivalent circuit model that uses machine parameters measured from an actual machine, and PWM carrier loss is evaluated using the PWM carrier voltage waveform obtained from the proposed model and the measured high-frequency impedance. The validity of the proposed model is examined by comparing the model-based evaluation results with the experimental results.

Multi-mode Vibration Suppression for Electric Machines using Passive Dynamic Vibration Absorbers Mounting on Stator Outer Peripheral 国際会議

Naho Funasaka

27th International Conference on Electrical Machines and Systems (ICEMS2024) 2024年11月 The Institute of Electrical Engineering of Japan

開催年月日： 2024年11月

記述言語：英語会議種別：ポスター発表

開催地：Fukuoka Institute of Technology, Fukuoka, Japan 国名：日本国

This paper presents multi-mode vibration suppression of electromechanical systems using a passive dynamic vibration absorber attached to a stator outer peripheral of an electric machine. The principle of vibration generation in an electric motor is explained. Subsequently, the structure and design procedure of passive dynamic vibration absorber for each vibration mode. The arrangement of these passive dynamic vibration absorbers on the stator periphery is then examined. Finally, the multi-mode vibration suppression effect is validated through hammering tests using a stator core with fabricated passive dynamic vibration absorbers attached.

ダイナモベンチを利用しないモータ巻線のオンライン絶縁寿命試験装置の開発

矢頭　大輔

電気学会半導体電力変換/モータドライブ合同研究会 2024年09月一般社団法人電気学会

開催年月日： 2024年09月

記述言語：日本語会議種別：口頭発表（一般）

開催地：南相馬市民情報交流センター国名：日本国

MATLAB/Simulink-JMAG Designer連成シミュレータによる磁界干渉を考慮したEV駆動用多相極数切換誘導機の極数切換制御の検討

萩原　宏哉

電気学会半導体電力変換/モータドライブ合同研究会 2024年09月一般社団法人電気学会

開催年月日： 2024年09月

記述言語：日本語会議種別：口頭発表（一般）

開催地：南相馬市民情報交流センター国名：日本国

モータ外周への各モード対応DVA複数個装着による複数モード振動抑制効果のハンマリング試験評価

船坂　南帆

令和6年電気学会産業応用部門大会 2024年08月一般社団法人電気学会

開催年月日： 2024年08月

記述言語：日本語会議種別：ポスター発表

開催地：水戸市民会館国名：日本国

自動車駆動用高速,高出力密度準コアレスPMSMの設計検討

石原　輝力

令和6年電気学会産業応用部門大会 2024年08月一般社団法人電気学会

開催年月日： 2024年08月

記述言語：日本語会議種別：口頭発表（一般）

開催地：水戸市民会館国名：日本国

鉄道用ハイブリッド界磁モータの設計検討

河合　龍希

電気学会モータドライブ/回転機/自動車合同研究会 2024年07月一般社団法人電気学会

開催年月日： 2024年07月

記述言語：日本語会議種別：口頭発表（一般）

開催地：沖縄県市町村自治会館国名：日本国

Design study on hybrid excitation flux switching motor for electric taxiing system in aircraft 国際共著国際会議

Yugo Hara

13th International Conference on Power Electronics, Machines and Drives (PEMD 2024) 2024年06月 IET

開催年月日： 2024年06月

記述言語：英語会議種別：口頭発表（一般）

開催地：University of Nottingham, Nottingham, UK 国名：グレートブリテン・北アイルランド連合王国(英国)

This paper presents an electric motor design for an electric taxiing system in aircraft. Electric motors for the electric taxiing system require high power density and high mechanical robustness of rotor. A hybrid excitation flux switching motor as a kind of variable flux motors is a good candidate because all active components such as permanent magnets and windings are located on the stator body essentially suitable for high speed rotation. An optimum design study on hybrid excitation flux switching motor is conducted based on finite element analysis using multi-objective genetic algorithm. For the design study, aluminum conductors for windings are introduced and a use of local non-magnetization technique for rotor electrical steel sheets are assumed to improve the power density and the rotor mechanical strength. Besides, the iron loss of rotor made of high-tensile electrical steel sheets is evaluated because an increase in iron loss is one of concerns with the high-tensile electrical steel sheets. The optimum design results based on finite element analysis show that both the power density with reduced rotor weight and the rotor mechanical stress using locally non-magnetized rotor high-tensile electrical steel sheets meet for the requirements.

DOI： 10.1049/icp.2024.2171

その他リンク： https://xplorestaging.ieee.org/document/10663610

ナノクリスタル材料を用いた EMI フィルタの性能評価

北原　和輝

電気学会半導体電力変換研究会 2023年07月一般社団法人電気学会

開催年月日： 2023年07月

記述言語：日本語会議種別：口頭発表（一般）

開催地：神戸国名：日本国

Iron loss characteristics for various magnetic materials under PWM inverter excitation 国際会議

Taisei Yamaguchi

IEEE INTERMAG 2023 2023年05月 Institute of Electrical and Electronics Engineers

開催年月日： 2023年05月